People are always kvetching that they can’t edit their comments after they’re posted, and asking me why there is no editing feature. The reason is simple: WordPress doesn’t provide one for my website. So please reread your comments carefully before you press the “post” button.
And, if you’ve really screwed up, put in the wrong html command so that everything in the thread turns into italics, or something equally dire, just send me a personal email* asking me to do an edit. I can go into comments and fix them, though I never do except at a reader’s request.
That said, please make such requests sparingly.
*To find the email, just Google “Jerry Coyne University of Chicago”